History of question #667746
| When | Who | Action | New State |
|---|---|---|---|
| Bruno Chareyre | Answer | Answered | |
| Jan Stránský | Comment | Answered | |
| Kun Zeng | Reopen | Open | |
| Jan Stránský | Request for more information | Needs information | |
| Kun Zeng | Give more information | Open | |
| Kun Zeng | Give more information | Open | |
| Jan Stránský | Answer | Answered | |
| Kun Zeng | Confirm | Solved |
